CN109979739A - A kind of rectifier transformer applied to movable charging vehicle - Google Patents
A kind of rectifier transformer applied to movable charging vehicle Download PDFInfo
- Publication number
- CN109979739A CN109979739A CN201910325429.0A CN201910325429A CN109979739A CN 109979739 A CN109979739 A CN 109979739A CN 201910325429 A CN201910325429 A CN 201910325429A CN 109979739 A CN109979739 A CN 109979739A
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- China
- Prior art keywords
- coil
- secondary coil
- phase
- air duct
- layer secondary
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2876—Cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/04—Fixed transformers not covered by group H01F19/00 having two or more secondary windings, each supplying a separate load, e.g. for radio set power supplies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/12—Two-phase, three-phase or polyphase transformers
Abstract
The invention discloses a kind of rectifier transformer applied to movable charging vehicle, including core assembly, three-phase primary coil, the core assembly includes three stems, which is characterized in that further includes the first secondary coil of three-phase, three-phase second subprime coil；Every phase primary coil covers on a stem, every the first secondary coil of phase covers in the top half outside corresponding phase primary coil, every phase second subprime coil covers on the lower half portion outside corresponding phase primary coil, the first secondary coil of three-phase and three-phase second subprime coil form two output voltage, and two output voltage is superimposed after rectified current.Secondary coil is divided into two groups of secondary coils by the present invention, forms two output voltage, and two output voltage is superimposed after passing through rectified current, so that output ripple reduces one times, to reduce the volume of subsequent rectification circuit.
Description
Technical field
The present invention relates to movable charging vehicle technical field, in particular to a kind of rectifier transformer applied to movable charging vehicle
Device.
Background technique
Power type electric car ac and dc systems are generally by isolating transformer transformation currently on the market, then pass through electronic device
Power battery charging is given after rectifying and wave-filtering, it is desirable that low ripple, low-temperature-rise high power density.General rectifier transformer is designed as 6 arteries and veins
Ordinary construction is rushed, performance is presented as that ripple is big.The high 20-30 degree of coil highest point temperature rise ratio average temperature rising, and the service life of transformer
Depending on the maximum temperaturerise of coil, so amplifying transformer size is needed (to increase the conductive area and iron of coil when conventional design
The heat dissipation area of core) guarantee that temperature rise meets the life requirements of design.And movable charging vehicle requires minimum volume and high power close
Degree, conventional design are extremely difficult to require.
Summary of the invention
Technical problem to be solved by the present invention lies in provide one for above-mentioned technical problem present in the prior art
Kind is applied to the rectifier transformer of movable charging vehicle, is intended to improve the power density of power type movable charging vehicle and reduces transformation
The highest point temperature rise of device promotes life of product and reliability.
The technical problems to be solved by the invention can be achieved through the following technical solutions:
A kind of rectifier transformer applied to movable charging vehicle, including core assembly, three-phase primary coil, the iron core group
Part includes three stems, which is characterized in that further includes the first secondary coil of three-phase, three-phase second subprime coil；Every phase primary line
On a stem, every the first secondary coil of phase covers in the top half outside corresponding phase primary coil snare, and second of every phase
Grade coil covers on the lower half portion outside corresponding phase primary coil, and the first secondary coil of three-phase and three-phase second subprime coil are formed
Two output voltage, two output voltage are superimposed after rectified current.
In a preferred embodiment of the invention, every phase primary coil is by inner primary coil and outer primary coil group
At being provided with the first circumferential air duct between the inner primary coil and outer primary coil；Every the first secondary coil of phase is by
One internal layer secondary coil and the first outer layer secondary coil composition, every phase second subprime coil is by the second internal layer secondary coil and second
Outer layer secondary coil composition, the first internal layer secondary coil, the second internal layer secondary coil and outer primary coil are provided with the
Two circumferential air ducts, between the first internal layer secondary coil and the first outer layer secondary coil, the second internal layer secondary coil and the second outer layer
Third circumferential direction air duct is provided between secondary coil；It is provided in the first outer layer secondary coil and the second outer layer secondary coil periphery
Fourth circumferential air duct；The lower end in the described first, second, third and fourth circumferential air duct offers air inlet, and upper end offers outlet air
Mouthful.
In a preferred embodiment of the invention, in the first inner primary coil internal each setting in the front-back direction
There is a first axis air duct；In first outer primary coil, inside is each provided with one second axial ducts in the front-back direction；
A third axial ducts are each provided with the first internal layer secondary coil and the second internal layer secondary coil are internal in the front-back direction, the
Inside is each provided with one the 4th axial ducts in the front-back direction for one outer layer secondary coil and the second outer layer secondary coil.
In a preferred embodiment of the invention, it is provided between first secondary coil and second subprime coil
Annular passage；The annular passage and the second week are to air duct, third circumferential direction air duct, fourth circumferential air duct, third axial direction wind
Road, the connection of the 4th axial ducts
In a preferred embodiment of the invention, deflector is provided on the outside of the annular passage.
In a preferred embodiment of the invention, the deflector, which is adopted, is made from an insulative material.
In view of common rectifier transformer, only secondary coil is divided into two groups of secondary coils by output voltage, the present invention all the way,
Two output voltage is formed, two output voltage is superimposed after passing through rectified current, so that output ripple reduces one times, to reduce
The volume of subsequent rectification circuit.
Because transformer is entirety in cabinet, being cooled down by blower, wind direction is to enter the wind top outlet air from transformer bottom,
It is that no deflector and inside transformer air duct are few (because the not presence of deflector, leads in transformer when being typically designed
Portion's air quantity is few, air duct not big promotion of heat-sinking capability more), transformer coil temperature is from to gradually dropping outside
Low, for coil internal-external temperature difference up to 50 degree or more, coil maximum temperaturerise and average temperature rising differ 20-30 degree.Invention increases lead
It forces air quantity to be concentrated to inside transformer after flowing plate, is flowed through from the circumferential air duct and circumferential air duct of coil inside, so that transformation
Device maximum temperaturerise reduces 20-30 degree, and close to average temperature rising, transformer anti-short circuit capability and overload capacity improve 20% or more,
Under same output power, 20% or more volume-diminished.
Detailed description of the invention
Fig. 1 is the electrical schematic diagram for the rectifier transformer that the present invention is applied to movable charging vehicle.
Fig. 2 is the front view for the rectifier transformer that the present invention is applied to movable charging vehicle.
Fig. 3 is the left view for the rectifier transformer that the present invention is applied to movable charging vehicle.
Fig. 4 is the left cross-sectional view for the rectifier transformer that the present invention is applied to movable charging vehicle.
Fig. 5 is the top view for the rectifier transformer that the present invention is applied to movable charging vehicle.
Specific embodiment
The present invention is further described below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1 to Fig. 5, a kind of rectifier transformer applied to movable charging vehicle shown in figure, including core assembly
04, three-phase primary coil 01.A, B, C in Fig. 1 are respectively the input terminal of three-phase primary coil 01, and N is ground wire.
Core assembly 04 includes three stem 04a, upper yoke 04b and lower yoke 04c, three stem 04a, upper yoke 04b and lower yoke
04c is assembled by silicon steel sheet or amorphous and similar material, assembly method can be 90 degree directly seam, 90 degree of intersection seams,
Mitre rolls.
The upper end of three stem 04a is connected and passes through a pair of of metal upper clamping piece 08 and three pull-up spiral shells by upper yoke 04b
Bar 11 is fixed, and the lower end of three stem 04a is connected and passes through a pair of of metal lower clamping piece 07 and three drop-down spiral shells by lower yoke 04c
Bar 11a is fixed.Pass through the U-shaped pressing plate 09 of metal and punching screw rod 10 between a pair of of metal upper clamping piece 08 and a pair of of metal lower clamping piece 07
It connects.One piece of metal footing 06 is respectively fixed on the bottom at a pair of of metal lower clamping piece both ends.
With existing core assembly without what difference, the place not described may refer to existing above-mentioned core assembly 04
Technology.
First feature of the invention is: three-phase secondary coil is divided into two groups, that is, be divided into the first secondary coil of three-phase 02,
Three-phase second subprime coil 03, A, B, C in Fig. 1 are respectively the input terminal of three-phase primary coil 01.A2, b2, c2 in 1 in figure
The respectively output end of three-phase secondary coil 02.A1, b1, c1 are respectively the output end of three-phase secondary coil 03.
Every the first secondary coil of phase 02 and every phase second subprime coil 03 divide the primary coil 01 for upper and lower sleeve in corresponding phase
Periphery, wherein 02 set of every the first secondary coil of phase is in the top half outside corresponding phase primary coil 01, every phase second subprime line
03 set of circle on the lower half portion outside corresponding phase primary coil 01.Put on the first secondary coil 02 and second subprime coil 03 just
Grade coil 01 is covered again on corresponding stem 04a.The first secondary coil of three-phase 02 and three-phase second subprime coil 03 form two-way
Output voltage, two output voltage are superimposed after rectified current, two output voltage is superimposed after passing through rectified current, so that
Output ripple reduces one times, to reduce the volume of subsequent rectification circuit.
Second feature of the invention is: every phase primary coil 01 is by inner primary coil 01a and outer primary coil
01a composition, every the first secondary coil of phase 02 are made of the first internal layer secondary coil 02a and the first outer layer secondary coil 02b, every phase
Second subprime coil 03 is made of the second internal layer secondary coil 03a and the second outer layer secondary coil 03b.
The first circumferential direction air duct 12a is provided between inner primary coil 01a and outer primary coil 01b；Level in first
Grade coil 02a, the second internal layer secondary coil 03a and outer primary coil 01b are provided with second week to air duct 12b, the first internal layer
Between secondary coil 02a and the first outer layer secondary coil 02b, the second internal layer secondary coil 03a and the second outer layer secondary coil 03b
Between be provided with third circumferential direction air duct 12c；It is arranged in the first outer layer secondary coil 02b and the second outer layer periphery secondary coil 03b
There is fourth circumferential air duct 12d；The lower end of first, second, third and fourth circumferential air duct 12a, 12b, 12c, 12d offers air inlet, on
End offers air outlet.
In addition in the first inner primary coil 01a, inside is each provided with first axis air duct 12e, a 12f in the front-back direction；
In the first outer primary coil 01b, inside is each provided with one second axial ducts 12g, 12h in the front-back direction；The level in first
Grade coil 02a and the second internal layer secondary coil 03a in the front-back direction it is internal be each provided with a third axial ducts 12i, 12j,
12k, 12m are each provided with one the the first outer layer secondary coil 02b and the second outer layer secondary coil 03b is internal in the front-back direction
Four axial ducts 12n, 12p, 12q, 12r.
There are also be provided with annular passage 12s between the first secondary coil 02 and second subprime coil 03；Annular passage 12s
With second week to air duct 12b, third circumferential direction air duct 12c, fourth circumferential air duct 12d, third axial ducts 12i, 12j, 12k,
12m, the 4th axial ducts 12n, 12p, 12q, 12r connection.Deflector 5 is provided on the outside of annular passage 12s.Deflector 5
It adopts and is made from an insulative material.Invention increases forcing air quantity to be concentrated to inside transformer after deflector 5, from the week of coil inside
It is flowed through into air duct and circumferential air duct, so that transformer maximum temperaturerise reduces 20-30 degree, close to average temperature rising, transformer resists short
Road ability and overload capacity improve 20% or more, under same output power, 20% or more volume-diminished.
Claims (6)
1. a kind of rectifier transformer applied to movable charging vehicle, including core assembly, three-phase primary coil, the core assembly
Include three stems, which is characterized in that further include the first secondary coil of three-phase, three-phase second subprime coil；Every phase primary coil
It covers on a stem, every the first secondary coil of phase covers in the top half outside corresponding phase primary coil, every phase second subprime
Coil covers on the lower half portion outside corresponding phase primary coil, and the first secondary coil of three-phase and three-phase second subprime coil form two
Road output voltage, two output voltage are superimposed after rectified current.
2. a kind of rectifier transformer applied to movable charging vehicle as described in claim 1, which is characterized in that every phase primary line
Circle is made of inner primary coil and outer primary coil, and the is provided between the inner primary coil and outer primary coil
One circumferential air duct；Every the first secondary coil of phase is made of the first internal layer secondary coil and the first outer layer secondary coil, every phase second
Secondary coil is made of the second internal layer secondary coil and the second outer layer secondary coil, the first internal layer secondary coil, in second
Hierarchical level coil and outer primary coil are provided with second week to air duct, the first internal layer secondary coil and the first outer layer secondary coil
Between, between the second internal layer secondary coil and the second outer layer secondary coil be provided with third circumferential direction air duct；In the first outer hierarchical level
Coil and the second outer layer secondary coil periphery are provided with fourth circumferential air duct；The lower end in the described first, second, third and fourth circumferential air duct
Air inlet is offered, upper end offers air outlet.
3. a kind of rectifier transformer applied to movable charging vehicle as claimed in claim 2, which is characterized in that described first
Inner primary coil is internal in the front-back direction to be each provided with a first axis air duct；In first outer primary coil front and back
To inside be each provided with one second axial ducts；The first internal layer secondary coil and the second internal layer secondary coil in the front-back direction
Inside is each provided with a third axial ducts, internal in the front-back direction in the first outer layer secondary coil and the second outer layer secondary coil
It is each provided with one the 4th axial ducts.
4. a kind of rectifier transformer applied to movable charging vehicle as claimed in claim 3, which is characterized in that described first
Annular passage is provided between secondary coil and second subprime coil；The annular passage and the second week are to air duct, third
Circumferential air duct, fourth circumferential air duct, third axial ducts, the connection of the 4th axial ducts.
5. a kind of rectifier transformer applied to movable charging vehicle as claimed in claim 4, which is characterized in that in the annular
Deflector is provided on the outside of air duct.
6. a kind of rectifier transformer applied to movable charging vehicle as claimed in claim 5, which is characterized in that the deflector
It adopts and is made from an insulative material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910325429.0A CN109979739A (en) | 2019-04-22 | 2019-04-22 | A kind of rectifier transformer applied to movable charging vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910325429.0A CN109979739A (en) | 2019-04-22 | 2019-04-22 | A kind of rectifier transformer applied to movable charging vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109979739A true CN109979739A (en) | 2019-07-05 |
Family
ID=67085734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910325429.0A Pending CN109979739A (en) | 2019-04-22 | 2019-04-22 | A kind of rectifier transformer applied to movable charging vehicle |
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| Country | Link |
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| CN (1) | CN109979739A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2525656Y (en) * | 2001-12-29 | 2002-12-11 | 云南变压器电气股份有限公司 | Heat radiation closed dry transformer |
| CN102364638A (en) * | 2011-09-21 | 2012-02-29 | 江苏金帆电源科技有限公司 | Three-phase rectifier transformer |
| CN103078529A (en) * | 2012-12-31 | 2013-05-01 | 江苏一同环保工程技术有限公司 | High-power high-frequency high-voltage series composition rectifier transformer |
| CN103746439A (en) * | 2013-12-19 | 2014-04-23 | 江苏金帆电源科技有限公司 | Energy-saving type storage battery formation charge and discharge power supply |
| CN204088025U (en) * | 2014-08-29 | 2015-01-07 | 东莞市大忠电子有限公司 | Data center's k-factor transformer |
| CN209822458U (en) * | 2019-04-22 | 2019-12-20 | 上海兆启新能源科技有限公司 | Rectifier transformer applied to mobile charging vehicle |
-
2019
- 2019-04-22 CN CN201910325429.0A patent/CN109979739A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2525656Y (en) * | 2001-12-29 | 2002-12-11 | 云南变压器电气股份有限公司 | Heat radiation closed dry transformer |
| CN102364638A (en) * | 2011-09-21 | 2012-02-29 | 江苏金帆电源科技有限公司 | Three-phase rectifier transformer |
| CN103078529A (en) * | 2012-12-31 | 2013-05-01 | 江苏一同环保工程技术有限公司 | High-power high-frequency high-voltage series composition rectifier transformer |
| CN103746439A (en) * | 2013-12-19 | 2014-04-23 | 江苏金帆电源科技有限公司 | Energy-saving type storage battery formation charge and discharge power supply |
| CN204088025U (en) * | 2014-08-29 | 2015-01-07 | 东莞市大忠电子有限公司 | Data center's k-factor transformer |
| CN209822458U (en) * | 2019-04-22 | 2019-12-20 | 上海兆启新能源科技有限公司 | Rectifier transformer applied to mobile charging vehicle |
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